JPH0134977Y2 - - Google Patents
Info
- Publication number
- JPH0134977Y2 JPH0134977Y2 JP737485U JP737485U JPH0134977Y2 JP H0134977 Y2 JPH0134977 Y2 JP H0134977Y2 JP 737485 U JP737485 U JP 737485U JP 737485 U JP737485 U JP 737485U JP H0134977 Y2 JPH0134977 Y2 JP H0134977Y2
- Authority
- JP
- Japan
- Prior art keywords
- ring
- rolling bearing
- presser bolt
- bolt
- inner ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000005096 rolling process Methods 0.000 claims description 24
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 238000005452 bending Methods 0.000 description 7
- 241001131688 Coracias garrulus Species 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Clamps And Clips (AREA)
Description
【考案の詳細な説明】
〔考案の目的〕
（産業上の利用分野）
この考案は２分割ころがり軸受の内輪の結合用
リングに関するもので、特に大型２分割ころがり
軸受の内輪結合用として適する結合用リングに関
するものである。[Detailed explanation of the invention] [Purpose of the invention] (Field of industrial application) This invention relates to a coupling ring for the inner ring of a two-piece rolling bearing, and is particularly suitable for coupling the inner ring of a large two-piece rolling bearing. It's about rings.
（従来の技術）
大型２分割ころがり軸受、例えば、製鉄所の転
炉のトラニオン軸を軸受するころがり軸受などに
は、近年この軸受が利用され始めている。(Prior Art) In recent years, this bearing has begun to be used as a large two-part rolling bearing, for example, a rolling bearing that supports a trunnion shaft of a converter in a steel mill.
その理由は、ころがり軸受が分割型でなく、一
体型の場合は、若し、ころがり軸受を取換えるこ
とになれば、古いころがり軸受の内輪は軸の端か
ら外ずさなければならず、又新しい軸承の内輪は
軸の端から押込まねばならない。 The reason for this is that if the rolling bearing is an integral type rather than a split type, if the rolling bearing is to be replaced, the inner ring of the old rolling bearing must be removed from the end of the shaft. The inner ring of the new bearing must be pushed in from the end of the shaft.
ところが、上記転炉のトラニオン軸になると、
一方のトラニオン軸の端には傾動装置が取付けら
れているので、該軸のころがり軸受を取替えるこ
とになると、先づ傾動装置を取外さなければなら
ないため、ころがり軸受取換え完了までには30〜
50日にも及ぶ工数を必要とすることになり、生産
性に大きな影響を与えてしまうところから、一体
型のころがり軸受に代え、該傾動装置を取外さな
くとも軸受を換えることのできる２分割ころがり
軸受が使用されるようになつたのである。 However, when it comes to the trunnion shaft of the converter,
A tilting device is attached to the end of one of the trunnion shafts, so when replacing the rolling bearing of that shaft, the tilting device must be removed first, so it takes about 30 to 30 minutes to complete the rolling bearing replacement.
Since this would require up to 50 days of man-hours and would have a major impact on productivity, instead of using an integrated rolling bearing, we decided to use a two-piece design that allows the bearing to be replaced without having to remove the tilting device. Rolling bearings began to be used.
上記２分割ころがり軸受装置は、一般に、第３
図に示すような構成である。 Generally, the above-mentioned two-part rolling bearing device has a third
The configuration is as shown in the figure.
即ち、第３図イに示すように、内輪Ａが２部分
a1，a2に、又外輪Ｂも２部分b1，b2に夫々分割さ
れており、内外輪Ａ，Ｂ間に円筒ころＣが挿入さ
れており、２部分に分割されている内輪Ａは１対
の結合リングＤ，Ｄ((第３図ロ参照))で外周から
締付けられて結合され且つ軸Ｅに固定されてお
り、結合リングＤは、普通、分割部部ｄ，ｄ((第
３図イ参照))で半円形分割ングD1，D2に２分割
されており、これらをボルトで連結するため、一
方の分割リングD1の両端小口には押えボルト
（タツプボルト）ｅのねじ穴ｆが、又他方の分割
ングD2の両端部には押えボルトｅの頭ｇが陥没
できる切欠部ｈによつて形成されるフランジ部ｉ
が夫々設けられ、該フランジ部ｉに、前記押えボ
ルトｅの頭ｇを引掛けて該押えボルトｅを一方の
分割リングD1の端面のねじ穴ｆに螺合して２分
割リングD1，D2を一体化し、２分割されている
内輪Ａを締付け結合している。なお、第３図中Ｅ
は軸を示す。なお又、２分割されている外輪Ｂは
軸受箱で結合保持されている。 That is, as shown in Fig. 3A, the inner ring A is divided into two parts.
a 1 and a 2 , and the outer ring B is also divided into two parts b 1 and b 2 , respectively, and a cylindrical roller C is inserted between the inner and outer rings A and B, and the inner ring A is divided into two parts. are connected by tightening from the outer periphery with a pair of connecting rings D, D ((see Figure 3 B)) and are fixed to the shaft E, and the connecting ring D is usually connected to the divided parts d, d(( It is divided into two semicircular division rings D 1 and D 2 by the (see Figure 3 A)), and in order to connect these with bolts, one of the division rings D 1 has presser bolts (tap bolts) e at both ends. A flange portion i is formed with a screw hole f, and a notch h into which the head g of the holding bolt e can be sunk at both ends of the other division D2 .
are provided respectively, and the head g of the presser bolt e is hooked onto the flange portion i, and the presser bolt e is screwed into the threaded hole f in the end face of one of the split rings D 1 , and the two split rings D 1 , D 2 is integrated, and the inner ring A, which is divided into two parts, is tightened and connected. In addition, E in Figure 3
indicates the axis. Furthermore, the outer ring B, which is divided into two parts, is held together by a bearing box.
（考案が解決しようとする問題点）
叙上のような押えボルトを締付けたり、緩めた
りするのには、押えボルトｅの頭ｇが切欠部ｈ中
（図示のものは、第４図に示すように、フランジ
部ｉに更に凹窩部ｍを作つて、該凹窩部中にかく
してあるため、第４図に示すような、先端が押え
ボルトｅの頭ｇに穿設されている六角穴g′に嵌合
する断面正六角形の屈曲部ｊがあつて把柄部ｋと
なる六角レンチＧを使用するが、上記の形状の六
角レンチＧを使用する関係上、前記把柄部ｋを握
つて押へボルトｅを回動しようとすると、第５図
に示すように、六角レンチＧの前記屈曲部ｊが、
常に押えボルトｅの中心軸線の中心軸線Ｏ−Ｏ上
に保持されるように、力Ｆに相当する反力を屈曲
部ｊに与えて回動が行われれば、FL（但し、Ｆは
六角レンチＧの把柄部ｋに直角に作用する力、Ｌ
は中心軸線Ｏ−Ｏより力Ｆの作用線までの垂直距
離）のトルクが働くだけであるが、そうでない場
合は、頭ｇに曲げモーメントFL′（L′は前記頭ｇ
の六角形穴g′の底部より前記屈曲部ｊの頭部に作
用する力Ｆの作用線までの距離）が加わる。又、
屈曲部ｊと頭ｇとの間のガタにより第５図中点線
で示すように、六角レンチＧが傾き、このため押
えボルトｅが充分締らないことがある。(Problem to be solved by the invention) To tighten or loosen the presser bolt as described above, it is necessary to insert the head g of the presser bolt e into the notch h (the one shown is shown in Fig. 4). As shown in FIG. 4, a concave part m is further formed in the flange part i, and the concave part m is hidden in the concave part, so that the tip of the hexagonal hole is bored into the head g of the holding bolt e, as shown in FIG. A hexagonal wrench G is used, with a bent part j having a regular hexagonal cross-section that fits into g', forming a handle k. However, since the hexagonal wrench G of the above shape is used, it is difficult to grasp and push the handle k. When trying to rotate the bolt e, as shown in FIG.
If rotation is performed by applying a reaction force equivalent to the force F to the bent part j so that it is always held on the central axis O-O of the central axis of the presser bolt e, FL (where F is a hexagonal wrench) The force acting perpendicularly to the handle k of G, L
is the vertical distance from the central axis O-O to the line of action of the force F), but otherwise, the bending moment FL'(L' is the bending moment FL' on the head g)
(distance from the bottom of the hexagonal hole g' to the line of action of the force F acting on the head of the bent portion j) is applied. or,
The play between the bent portion j and the head g causes the hexagonal wrench G to tilt as shown by the dotted line in FIG. 5, which may prevent the presser bolt e from being sufficiently tightened.
そのため、押えボルトを信頼性高く締付けるた
めには、第６図に示すように、押えボルトｅの頭
ｇの六角穴g′に一端が嵌合する六角柱ｌの他端に
レンチＨの一端の六角形孔を嵌合して回動させる
ようにするが、この方法とても六角柱ｌが押えボ
ルトｅの中心軸線ｏ−ｏの方向に確保されＦに相
当する反力が与えられないかぎり、押えボルトｅ
の頭ｇの六角穴g′と六角柱ｌの下端との間のガ
タ、又六角柱ｌの上端とレンチＨの一端の六角形
孔との間のガタのため、同じく六角柱ｌは傾いて
しまうし、而も、距離L′はこの場合、明らかに大
きくなるので、押えボルトｅに対する曲げモーメ
ントも大きくなり、押えボルトの強度が問題とな
つて来る。 Therefore, in order to tighten the presser bolt with high reliability, as shown in Fig. 6, one end of the wrench H must be attached to the other end of the hexagonal column l, one end of which fits into the hexagonal hole g' of the head g of the presser bolt e. The hexagonal holes are fitted and rotated, but this method does not work unless the hexagonal column l is secured in the direction of the central axis o-o of the presser bolt e and a reaction force equivalent to F is applied. bolt e
Due to the play between the hexagonal hole g' of the head g and the lower end of the hexagonal column l, and the play between the upper end of the hexagonal column l and the hexagonal hole at one end of the wrench H, the hexagonal column l is also tilted. Moreover, since the distance L' becomes obviously large in this case, the bending moment with respect to the presser bolt e also increases, and the strength of the presser bolt becomes a problem.
この問題は小径の六角穴付押えボルトでは大し
て問題とならず、レンチＨの先端を手で押えて締
付けを行うこともできるが、転炉のトラニオン軸
ともなると、外径が1.6ｍ位にまでなるので、締
付トルクも大きくなり、入力では支持し切れなく
なる問題点があつた。この考案は叙上の事実に鑑
み、分割リングD1，D2を結合するための六角形
の穴付押えボルトを回転用工具で回転する際の、
該回転用工具の保持装置を該分割リングの一方に
設けて置き、前記曲げモーメントの発生を防止で
きた、２分割ころがり軸受の内輪の結合用リング
を提供するのをその目的とする。 This problem is not a big problem with small-diameter hexagon socket head bolts and can be tightened by holding the tip of the wrench H by hand, but when it comes to the trunnion shaft of a converter, the outer diameter can be up to 1.6 m As a result, the tightening torque becomes large and there is a problem that it cannot be supported by input. This invention was developed in view of the above facts, and when rotating the hexagonal socket bolt for connecting the split rings D 1 and D 2 with a rotating tool,
The object of the present invention is to provide a ring for coupling the inner ring of a two-part rolling bearing, in which a holding device for the rotating tool is provided on one of the split rings, and the generation of the bending moment can be prevented.
（問題点を解決するための手段）
この考案に係る、２分割ころがり軸受の内輪の
結合用リングＤは、２分割ころがり軸受の内輪Ａ
の外周に嵌合でき、一部に押えボルトｅで結合さ
れる切割部ｄを有する結合用リングＤの、該分割
部ｄにおける該押えボルトｅの頭ｇの露出側に、
該押えボルトｅの回転用工具１の支え孔２を有す
るブラケツト３を取外し自在に設けたものであ
る。(Means for solving the problem) The coupling ring D of the inner ring of the two-part rolling bearing according to this invention is the inner ring A of the two-part rolling bearing.
of a coupling ring D having a cut portion d that can be fitted onto the outer periphery of the ring D and is partially coupled with a presser bolt e, on the exposed side of the head g of the presser bolt e in the divided portion d,
A bracket 3 having a support hole 2 for a tool 1 for rotating the presser bolt e is provided in a removable manner.
実施例
第２図に示す、この考案に係る２分割ころがり
軸受の内輪の結合用リングの一実施例に基づき、
その構成を説明すると、２分割ころがり軸受の内
輪Ａの外周に嵌合し、一部（この実施例では２箇
所）に切割部ｄを有する結合用リングＤの、該切
割部ｄの一方の分割リングD1に押えボルトｅを
螺合するねじ穴ｆを設け、該切割部ｄの他方の分
割リングD2には切欠部ｈを形成することにより
フランジ部ｉを形成し、該押えボルトｅをフラン
ジ部ｉに更に穿設した凹窩部ｍを通して前記ねじ
穴ｆに螺合できるようにし、該押えボルトｅにお
ける、押えボルトｅの頭ｇの露出する側の分割リ
ングD2に、前記切欠部ｈに続く溝４を掘り、該
溝中に前記押えボルトｅの頭ｇに被せた、押えボ
ルトｅの回転用工具１の支え孔２を有するブラケ
ツト３を螺子５で取外し自在に設けたものであ
る。なお該支え孔２の中心と押えボルトｅの中心
軸線ｏ−ｏとは整合するように設けるものとす
る。Embodiment Based on an embodiment of the coupling ring for the inner ring of the two-part rolling bearing according to this invention, shown in FIG.
To explain its structure, a coupling ring D that fits on the outer periphery of an inner ring A of a two-part rolling bearing and has a cut portion d at some (two locations in this embodiment) is divided into one of the cut portions d. A screw hole f into which the presser bolt e is screwed is provided in the ring D1 , and a cutout h is formed in the other split ring D2 of the cutout d to form a flange portion i, and the presser bolt e is screwed into the ring D1. The notch is provided in the split ring D2 of the presser bolt e on the side where the head g of the presser bolt e is exposed, so that it can be screwed into the screw hole f through the concave portion m further drilled in the flange portion i. A groove 4 following the hole 4 is dug, and in the groove a bracket 3 having a support hole 2 for a tool 1 for rotating the presser bolt e, which is placed over the head g of the presser bolt e, is removably provided with a screw 5. be. Note that the center of the support hole 2 and the center axis o-o of the presser bolt e are provided so as to be aligned.
（作用）
この実施例は叙上のような構成を有するから、
２分割ころがり軸受を軸Ｅより取外す場合には、
フランジ部ｉを有する分割リングD2の溝４中に
ブラケツト３を螺子５で取付け、押えボルトｅの
回転用工具１を該ブラケツト３の支え孔２に挿入
し、該回転用工具１の一端を該押えボルトｅの頭
ｇの六角穴g′に挿入嵌合し、該回転用工具１の他
端頂部にレンチＨの一端の六角形孔を嵌合してレ
ンチＨを廻し、押えボルトｅをねじ戻し、このよ
うにして分割部ｄの押えボルトｅを取外してリン
グＤを二個の分割リングD1，D2に分割すれば内
輪Ａは二つに分割でき軸Ｅから取外せるので、次
いでころＣ、分割されている外輪も取外せる。(Operation) Since this embodiment has the configuration as described above,
When removing the two-part rolling bearing from shaft E,
The bracket 3 is installed with the screw 5 into the groove 4 of the split ring D 2 having the flange part i, and the rotation tool 1 of the presser bolt e is inserted into the support hole 2 of the bracket 3, and one end of the rotation tool 1 is inserted. Insert and fit into the hexagonal hole g' of the head g of the presser bolt e, fit the hexagonal hole at one end of the wrench H into the top of the other end of the rotating tool 1, turn the wrench H, and tighten the presser bolt e. By unscrewing the screws, removing the holding bolt e of the divided part d in this way and dividing the ring D into two divided rings D 1 and D 2 , the inner ring A can be divided into two parts and removed from the shaft E. Roller C and the divided outer ring can also be removed.
又、ころ軸受を軸Ｅに取付ける場合は、軸Ｅを
軸受箱所定位置に設置し、軸Ｅの周囲に２分割さ
れている外輪Ｂを設置し、ころＣを嵌め更に２分
割されている内輪Ａを嵌め、該内輪Ａの外周に２
分割されている分割リングD1，D2を嵌め、フラ
ンジ部ｉの方から押えボルトｅを、他の分割リン
グD1の小口にねじ穴ｆに螺合し、次いで分割リ
ングD2に取付けてあるブラケツト３の支え孔２
に回転工具１を挿入し該工具の１の先端を前記押
えボルトｅの六角穴g′に挿入嵌合し、該回転工具
１の他端にレンチＨの一端の六角形孔を嵌合して
レンチＨを回転すれば、回転工具１はブラケツト
３の支え孔２で軸受され、押えボルトｅの中心軸
線ｏ−ｏ方向にしつかり保持されながら回転する
ので、押えボルトｅを確実に締め、リングＤによ
つて内輪Ａを軸Ｅにしつかり固定し、而もその間
押えボルトｅの頭に曲げモーメントを発生させる
ことがない。 In addition, when installing a roller bearing on the shaft E, install the shaft E in a predetermined position in the bearing box, install the outer ring B which is divided into two parts around the shaft E, fit the rollers C, and then install the inner ring which is further divided into two parts. Fit A and attach 2 to the outer periphery of the inner ring A.
Fit the divided rings D 1 and D 2 , screw the presser bolt e from the flange part i into the screw hole f on the small end of the other divided ring D 1 , and then attach it to the divided ring D 2 . Support hole 2 of certain bracket 3
Insert the rotary tool 1, insert and fit the tip of the tool 1 into the hexagonal hole g' of the presser bolt e, and fit the hexagonal hole at one end of the wrench H into the other end of the rotary tool 1. When the wrench H is rotated, the rotary tool 1 is supported by the support hole 2 of the bracket 3 and rotates while being firmly held in the direction of the center axis o-o of the presser bolt e, so the presser bolt e is securely tightened and the ring D is rotated. In this way, the inner ring A is firmly fixed to the shaft E, and no bending moment is generated at the head of the holding bolt e during this time.
この考案は叙上のような構成作用を有するか
ら、２分割されているころがり軸受の内輪Ａを、
該内輪Ａの外周より、分割リングD1，D2を押え
ボルトｅで結合して一体化して軸Ｅに固定する場
合、該押えボルトｅには回転工具１を介して締付
けのためのトルクのみ伝わり、曲げモーメントは
加わらないので、押えボルトｅの設計に該曲げモ
ーメントを考慮する必要がなく、押えボルトｅの
締付は信頼性高く行うことができ、回転工具１は
押えボルトｅの中心軸線ｏ−ｏ上に確保されるの
で該回転工具１の頭部を回転する締付工具は種々
のものが選べるから作業性を改善することができ
る。
Since this invention has the above-mentioned structural effect, the inner ring A of the rolling bearing, which is divided into two parts,
When the split rings D 1 and D 2 are joined from the outer periphery of the inner ring A with a presser bolt e to be integrated and fixed to the shaft E, only the torque for tightening is applied to the presser bolt e via the rotary tool 1. Since the bending moment is not applied, there is no need to consider the bending moment when designing the presser bolt e, and the tightening of the presser bolt e can be performed with high reliability. Since the head of the rotary tool 1 is secured on the o--o, a variety of tightening tools can be selected for rotating the head of the rotary tool 1, so that work efficiency can be improved.
第１図イはこの考案に係る２分割ころがり軸受
の内輪の結合用リングの一実施例の要部の正面
図、第１図ロは第１図イ中のロ−ロ線に沿つて見
たブラケツトの平面図、第２図はこの考案に係る
結合用リングの要部の斜視図、第３図イは従来の
２分割ころがり軸受の側面図、第３図ロは第３図
イ中のロ−ロ線に沿つて見た縦断正面図、第４図
は従来の２分割ころがり軸受の押えボルトの締付
方の説明図、第５図は第４図における押えボルト
に作用する力の説明図、第６図は押えボルト回転
用工具を使用する場合の説明図を夫々示し、Ａは
内輪、Ｄは結合用リング、ｄは切割部、ｅは押え
ボルト、ｇは押えボルトの頭、１は回転用工具、
２はブラケツトの支え孔、３はブラケツトを夫々
示す。
Figure 1A is a front view of the essential parts of an embodiment of the coupling ring for the inner ring of a two-part rolling bearing according to this invention, and Figure 1B is a view taken along the Ro-Ro line in Figure 1A. 2 is a perspective view of the main parts of the coupling ring according to this invention, FIG. 3A is a side view of a conventional two-part rolling bearing, and FIG. - A vertical sectional front view taken along line B, Fig. 4 is an explanatory diagram of how to tighten the presser bolt of a conventional two-part rolling bearing, and Fig. 5 is an explanatory diagram of the force acting on the presser bolt in Fig. 4. , Fig. 6 shows explanatory views when using the presser bolt rotation tool, where A is the inner ring, D is the coupling ring, d is the cut portion, e is the presser bolt, g is the head of the presser bolt, and 1 is the rotating tools,
Reference numeral 2 indicates a support hole for the bracket, and reference numeral 3 indicates a bracket.
Claims (1)
き、一部に、押えボルトｅで結合される切割部ｄ
を有する結合用リングＤの、該切割部ｄにおける
押えボルトｅの頭ｇの露出側に、該押えボルトｅ
の回転用工具１の支え孔２を有するブラケツト３
を取外し自在に設けたことを特徴とする、２分割
ころがり軸受の内輪の結合用リング。 A cut portion d that can be fitted onto the outer periphery of the inner ring A of a two-part rolling bearing and is partially connected with a holding bolt e.
The holding bolt e is attached to the exposed side of the head g of the holding bolt e in the cut portion d of the coupling ring D having
A bracket 3 having a support hole 2 for a rotating tool 1
A ring for connecting the inner ring of a two-part rolling bearing, characterized by a removable ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP737485U JPH0134977Y2 (en) | 1985-01-24 | 1985-01-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP737485U JPH0134977Y2 (en) | 1985-01-24 | 1985-01-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61124722U JPS61124722U (en) | 1986-08-06 |
| JPH0134977Y2 true JPH0134977Y2 (en) | 1989-10-25 |
Family
ID=30485669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP737485U Expired JPH0134977Y2 (en) | 1985-01-24 | 1985-01-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0134977Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2521914Y2 (en) * | 1988-12-23 | 1997-01-08 | エヌティエヌ株式会社 | Large rolling bearing |
-
1985
- 1985-01-24 JP JP737485U patent/JPH0134977Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61124722U (en) | 1986-08-06 |
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